diff --git a/src/__tests__/reviewTasks.test.ts b/src/__tests__/reviewTasks.test.ts
new file mode 100644
index 0000000..0b42df0
--- /dev/null
+++ b/src/__tests__/reviewTasks.test.ts
@@ -0,0 +1,169 @@
+/**
+ * Tests for review-tasks command
+ */
+
+import { describe, it, expect } from 'vitest';
+import {
+  parseTaktWorktrees,
+  extractTaskSlug,
+  buildReviewItems,
+  type WorktreeInfo,
+} from '../task/worktree.js';
+
+describe('parseTaktWorktrees', () => {
+  it('should parse takt/ branches from porcelain output', () => {
+    const output = [
+      'worktree /home/user/project',
+      'HEAD abc1234567890',
+      'branch refs/heads/main',
+      '',
+      'worktree /home/user/project/.takt/worktrees/20260128-fix-auth',
+      'HEAD def4567890abc',
+      'branch refs/heads/takt/20260128-fix-auth',
+      '',
+      'worktree /home/user/project/.takt/worktrees/20260128-add-search',
+      'HEAD 789abcdef0123',
+      'branch refs/heads/takt/20260128-add-search',
+    ].join('\n');
+
+    const result = parseTaktWorktrees(output);
+    expect(result).toHaveLength(2);
+
+    expect(result[0]).toEqual({
+      path: '/home/user/project/.takt/worktrees/20260128-fix-auth',
+      branch: 'takt/20260128-fix-auth',
+      commit: 'def4567890abc',
+    });
+
+    expect(result[1]).toEqual({
+      path: '/home/user/project/.takt/worktrees/20260128-add-search',
+      branch: 'takt/20260128-add-search',
+      commit: '789abcdef0123',
+    });
+  });
+
+  it('should exclude non-takt branches', () => {
+    const output = [
+      'worktree /home/user/project',
+      'HEAD abc123',
+      'branch refs/heads/main',
+      '',
+      'worktree /home/user/project/.takt/worktrees/20260128-fix-auth',
+      'HEAD def456',
+      'branch refs/heads/takt/20260128-fix-auth',
+      '',
+      'worktree /tmp/other-worktree',
+      'HEAD 789abc',
+      'branch refs/heads/feature/other',
+    ].join('\n');
+
+    const result = parseTaktWorktrees(output);
+    expect(result).toHaveLength(1);
+    expect(result[0]!.branch).toBe('takt/20260128-fix-auth');
+  });
+
+  it('should handle empty output', () => {
+    const result = parseTaktWorktrees('');
+    expect(result).toHaveLength(0);
+  });
+
+  it('should handle bare worktree entry (no branch line)', () => {
+    const output = [
+      'worktree /home/user/project',
+      'HEAD abc123',
+      'bare',
+    ].join('\n');
+
+    const result = parseTaktWorktrees(output);
+    expect(result).toHaveLength(0);
+  });
+
+  it('should handle detached HEAD worktrees', () => {
+    const output = [
+      'worktree /home/user/project',
+      'HEAD abc123',
+      'branch refs/heads/main',
+      '',
+      'worktree /tmp/detached',
+      'HEAD def456',
+      'detached',
+    ].join('\n');
+
+    const result = parseTaktWorktrees(output);
+    expect(result).toHaveLength(0);
+  });
+});
+
+describe('extractTaskSlug', () => {
+  it('should extract slug from timestamped branch name', () => {
+    expect(extractTaskSlug('takt/20260128T032800-fix-auth')).toBe('fix-auth');
+  });
+
+  it('should extract slug from date-only timestamp', () => {
+    expect(extractTaskSlug('takt/20260128-add-search')).toBe('add-search');
+  });
+
+  it('should extract slug with long timestamp format', () => {
+    expect(extractTaskSlug('takt/20260128T032800-refactor-api')).toBe('refactor-api');
+  });
+
+  it('should handle branch without timestamp', () => {
+    expect(extractTaskSlug('takt/my-task')).toBe('my-task');
+  });
+
+  it('should handle branch with only timestamp', () => {
+    const result = extractTaskSlug('takt/20260128T032800');
+    // Timestamp is stripped, nothing left, falls back to original name
+    expect(result).toBe('20260128T032800');
+  });
+
+  it('should handle slug with multiple dashes', () => {
+    expect(extractTaskSlug('takt/20260128-fix-auth-bug-in-login')).toBe('fix-auth-bug-in-login');
+  });
+});
+
+describe('buildReviewItems', () => {
+  it('should build items with correct task slug', () => {
+    const worktrees: WorktreeInfo[] = [
+      {
+        path: '/project/.takt/worktrees/20260128-fix-auth',
+        branch: 'takt/20260128-fix-auth',
+        commit: 'abc123',
+      },
+    ];
+
+    // We can't test getFilesChanged without a real git repo,
+    // so we test buildReviewItems' structure
+    const items = buildReviewItems('/project', worktrees, 'main');
+    expect(items).toHaveLength(1);
+    expect(items[0]!.taskSlug).toBe('fix-auth');
+    expect(items[0]!.info).toBe(worktrees[0]);
+    // filesChanged will be 0 since we don't have a real git repo
+    expect(items[0]!.filesChanged).toBe(0);
+  });
+
+  it('should handle multiple worktrees', () => {
+    const worktrees: WorktreeInfo[] = [
+      {
+        path: '/project/.takt/worktrees/20260128-fix-auth',
+        branch: 'takt/20260128-fix-auth',
+        commit: 'abc123',
+      },
+      {
+        path: '/project/.takt/worktrees/20260128-add-search',
+        branch: 'takt/20260128-add-search',
+        commit: 'def456',
+      },
+    ];
+
+    const items = buildReviewItems('/project', worktrees, 'main');
+    expect(items).toHaveLength(2);
+    expect(items[0]!.taskSlug).toBe('fix-auth');
+    expect(items[1]!.taskSlug).toBe('add-search');
+  });
+
+  it('should handle empty worktree list', () => {
+    const items = buildReviewItems('/project', [], 'main');
+    expect(items).toHaveLength(0);
+  });
+});
diff --git a/src/cli.ts b/src/cli.ts
index f9ec44a..958255f 100644
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -32,6 +32,7 @@ import {
   addTask,
   refreshBuiltin,
   watchTasks,
+  reviewTasks,
 } from './commands/index.js';
 import { listWorkflows } from './config/workflowLoader.js';
 import { selectOptionWithDefault } from './prompt/index.js';
@@ -127,9 +128,14 @@ program
           await watchTasks(cwd);
           return;
 
+        case 'review-tasks':
+        case 'review':
+          await reviewTasks(cwd);
+          return;
+
         default:
           error(`Unknown command: /${command}`);
-          info('Available: /run-tasks, /watch, /add-task, /switch, /clear, /refresh-builtin, /help, /config');
+          info('Available: /run-tasks, /watch, /add-task, /review-tasks, /switch, /clear, /refresh-builtin, /help, /config');
           process.exit(1);
       }
     }
diff --git a/src/commands/help.ts b/src/commands/help.ts
index b852937..e1d20e1 100644
--- a/src/commands/help.ts
+++ b/src/commands/help.ts
@@ -17,6 +17,7 @@ Usage:
   takt /run-tasks         Run all pending tasks from .takt/tasks/
   takt /watch             Watch for tasks and auto-execute (stays resident)
   takt /add-task          Add a new task (interactive, YAML format)
+  takt /review-tasks      Review worktree task results (merge/delete)
   takt /switch            Switch workflow interactively
   takt /clear             Clear agent conversation sessions (reset to initial state)
   takt /refresh-builtin   Overwrite builtin agents/workflows with latest version
@@ -29,6 +30,7 @@ Examples:
   takt /clear                           # Clear sessions, start fresh
   takt /watch                            # Watch & auto-execute tasks
   takt /refresh-builtin                 # Update builtin resources
+  takt /review-tasks                     # Review & merge worktree results
   takt /switch
   takt /run-tasks
 
diff --git a/src/commands/index.ts b/src/commands/index.ts
index ecb2489..ac3e89f 100644
--- a/src/commands/index.ts
+++ b/src/commands/index.ts
@@ -11,3 +11,4 @@ export { showHelp } from './help.js';
 export { withAgentSession } from './session.js';
 export { switchWorkflow } from './workflow.js';
 export { switchConfig, getCurrentPermissionMode, setPermissionMode, type PermissionMode } from './config.js';
+export { reviewTasks } from './reviewTasks.js';
diff --git a/src/commands/reviewTasks.ts b/src/commands/reviewTasks.ts
new file mode 100644
index 0000000..e14e2ab
--- /dev/null
+++ b/src/commands/reviewTasks.ts
@@ -0,0 +1,194 @@
+/**
+ * Review tasks command
+ *
+ * Interactive UI for reviewing worktree-based task results:
+ * merge, skip, or delete actions.
+ */
+
+import { execFileSync } from 'node:child_process';
+import chalk from 'chalk';
+import {
+  removeWorktree,
+  detectDefaultBranch,
+  listTaktWorktrees,
+  buildReviewItems,
+  type WorktreeReviewItem,
+} from '../task/worktree.js';
+import { selectOption, confirm } from '../prompt/index.js';
+import { info, success, error as logError, warn } from '../utils/ui.js';
+import { createLogger } from '../utils/debug.js';
+
+const log = createLogger('review-tasks');
+
+/** Actions available for a reviewed worktree */
+export type ReviewAction = 'merge' | 'skip' | 'delete';
+
+/**
+ * Show diff stat for a branch and prompt for an action.
+ */
+async function showDiffAndPromptAction(
+  cwd: string,
+  defaultBranch: string,
+  item: WorktreeReviewItem,
+): Promise<ReviewAction> {
+  console.log();
+  console.log(chalk.bold.cyan(`=== ${item.info.branch} ===`));
+  console.log();
+
+  // Show diff stat
+  try {
+    const stat = execFileSync(
+      'git', ['diff', '--stat', `${defaultBranch}...${item.info.branch}`],
+      { cwd, encoding: 'utf-8', stdio: 'pipe' },
+    );
+    console.log(stat);
+  } catch {
+    warn('Could not generate diff stat');
+  }
+
+  // Prompt action
+  const action = await selectOption<ReviewAction>(
+    `Action for ${item.info.branch}:`,
+    [
+      { label: 'Merge', value: 'merge', description: 'Merge changes into current branch and clean up' },
+      { label: 'Skip', value: 'skip', description: 'Return to list without changes' },
+      { label: 'Delete', value: 'delete', description: 'Discard changes, remove worktree and branch' },
+    ],
+  );
+
+  return action ?? 'skip';
+}
+
+/**
+ * Merge a worktree branch into the current branch.
+ * Removes the worktree first, then merges, then deletes the branch.
+ */
+export function mergeWorktreeBranch(projectDir: string, item: WorktreeReviewItem): boolean {
+  const { branch } = item.info;
+
+  try {
+    // 1. Remove worktree (must happen before merge to unlock branch)
+    removeWorktree(projectDir, item.info.path);
+
+    // 2. Merge the branch
+    execFileSync('git', ['merge', branch], {
+      cwd: projectDir,
+      encoding: 'utf-8',
+      stdio: 'pipe',
+    });
+
+    // 3. Delete the branch
+    try {
+      execFileSync('git', ['branch', '-d', branch], {
+        cwd: projectDir,
+        encoding: 'utf-8',
+        stdio: 'pipe',
+      });
+    } catch {
+      warn(`Could not delete branch ${branch}. You may delete it manually.`);
+    }
+
+    success(`Merged ${branch}`);
+    log.info('Worktree merged', { branch });
+    return true;
+  } catch (err) {
+    const msg = err instanceof Error ? err.message : String(err);
+    logError(`Merge failed: ${msg}`);
+    logError('You may need to resolve conflicts manually.');
+    log.error('Merge failed', { branch, error: msg });
+    return false;
+  }
+}
+
+/**
+ * Delete a worktree and its branch (discard changes).
+ */
+export function deleteWorktreeBranch(projectDir: string, item: WorktreeReviewItem): boolean {
+  const { branch } = item.info;
+
+  try {
+    // 1. Remove worktree
+    removeWorktree(projectDir, item.info.path);
+
+    // 2. Force-delete the branch
+    execFileSync('git', ['branch', '-D', branch], {
+      cwd: projectDir,
+      encoding: 'utf-8',
+      stdio: 'pipe',
+    });
+
+    success(`Deleted ${branch}`);
+    log.info('Worktree deleted', { branch });
+    return true;
+  } catch (err) {
+    const msg = err instanceof Error ? err.message : String(err);
+    logError(`Delete failed: ${msg}`);
+    log.error('Delete failed', { branch, error: msg });
+    return false;
+  }
+}
+
+/**
+ * Main entry point: review worktree tasks interactively.
+ */
+export async function reviewTasks(cwd: string): Promise<void> {
+  log.info('Starting review-tasks');
+
+  const defaultBranch = detectDefaultBranch(cwd);
+  let worktrees = listTaktWorktrees(cwd);
+
+  if (worktrees.length === 0) {
+    info('No tasks to review.');
+    return;
+  }
+
+  // Interactive loop
+  while (worktrees.length > 0) {
+    const items = buildReviewItems(cwd, worktrees, defaultBranch);
+
+    // Build selection options
+    const options = items.map((item, idx) => ({
+      label: item.info.branch,
+      value: String(idx),
+      description: `${item.filesChanged} file${item.filesChanged !== 1 ? 's' : ''} changed`,
+    }));
+
+    const selected = await selectOption<string>(
+      'Review Tasks (Worktrees)',
+      options,
+    );
+
+    if (selected === null) {
+      return;
+    }
+
+    const selectedIdx = parseInt(selected, 10);
+    const item = items[selectedIdx];
+    if (!item) continue;
+
+    const action = await showDiffAndPromptAction(cwd, defaultBranch, item);
+
+    switch (action) {
+      case 'merge':
+        mergeWorktreeBranch(cwd, item);
+        break;
+      case 'delete': {
+        const confirmed = await confirm(
+          `Delete ${item.info.branch}? This will discard all changes.`,
+          false,
+        );
+        if (confirmed) {
+          deleteWorktreeBranch(cwd, item);
+        }
+        break;
+      }
+      case 'skip':
+        break;
+    }
+
+    // Refresh worktree list after action
+    worktrees = listTaktWorktrees(cwd);
+  }
+
+  info('All tasks reviewed.');
+}
diff --git a/src/task/index.ts b/src/task/index.ts
index 56497e0..6ace254 100644
--- a/src/task/index.ts
+++ b/src/task/index.ts
@@ -12,6 +12,19 @@ export { showTaskList } from './display.js';
 
 export { TaskFileSchema, type TaskFileData } from './schema.js';
 export { parseTaskFile, parseTaskFiles, type ParsedTask } from './parser.js';
-export { createWorktree, removeWorktree, type WorktreeOptions, type WorktreeResult } from './worktree.js';
+export {
+  createWorktree,
+  removeWorktree,
+  detectDefaultBranch,
+  parseTaktWorktrees,
+  listTaktWorktrees,
+  getFilesChanged,
+  extractTaskSlug,
+  buildReviewItems,
+  type WorktreeOptions,
+  type WorktreeResult,
+  type WorktreeInfo,
+  type WorktreeReviewItem,
+} from './worktree.js';
 export { autoCommitWorktree, type AutoCommitResult } from './autoCommit.js';
 export { TaskWatcher, type TaskWatcherOptions } from './watcher.js';
diff --git a/src/task/worktree.ts b/src/task/worktree.ts
index 81240c6..59b80f8 100644
--- a/src/task/worktree.ts
+++ b/src/task/worktree.ts
@@ -140,3 +140,144 @@ export function removeWorktree(projectDir: string, worktreePath: string): void {
     log.error('Failed to remove worktree', { path: worktreePath, error: String(err) });
   }
 }
+
+// --- Review-related types and helpers ---
+
+const TAKT_BRANCH_PREFIX = 'takt/';
+
+/** Parsed worktree entry from git worktree list */
+export interface WorktreeInfo {
+  path: string;
+  branch: string;
+  commit: string;
+}
+
+/** Worktree with review metadata */
+export interface WorktreeReviewItem {
+  info: WorktreeInfo;
+  filesChanged: number;
+  taskSlug: string;
+}
+
+/**
+ * Detect the default branch name (main or master).
+ * Falls back to 'main'.
+ */
+export function detectDefaultBranch(cwd: string): string {
+  try {
+    const ref = execFileSync(
+      'git', ['symbolic-ref', 'refs/remotes/origin/HEAD'],
+      { cwd, encoding: 'utf-8', stdio: 'pipe' },
+    ).trim();
+    // ref is like "refs/remotes/origin/main"
+    const parts = ref.split('/');
+    return parts[parts.length - 1] || 'main';
+  } catch {
+    // Fallback: check if 'main' or 'master' exists
+    try {
+      execFileSync('git', ['rev-parse', '--verify', 'main'], {
+        cwd, encoding: 'utf-8', stdio: 'pipe',
+      });
+      return 'main';
+    } catch {
+      try {
+        execFileSync('git', ['rev-parse', '--verify', 'master'], {
+          cwd, encoding: 'utf-8', stdio: 'pipe',
+        });
+        return 'master';
+      } catch {
+        return 'main';
+      }
+    }
+  }
+}
+
+/**
+ * Parse `git worktree list --porcelain` output into WorktreeInfo entries.
+ * Only includes worktrees on branches with the takt/ prefix.
+ */
+export function parseTaktWorktrees(porcelainOutput: string): WorktreeInfo[] {
+  const entries: WorktreeInfo[] = [];
+  const blocks = porcelainOutput.trim().split('\n\n');
+
+  for (const block of blocks) {
+    const lines = block.split('\n');
+    let wtPath = '';
+    let commit = '';
+    let branch = '';
+
+    for (const line of lines) {
+      if (line.startsWith('worktree ')) {
+        wtPath = line.slice('worktree '.length);
+      } else if (line.startsWith('HEAD ')) {
+        commit = line.slice('HEAD '.length);
+      } else if (line.startsWith('branch ')) {
+        const ref = line.slice('branch '.length);
+        branch = ref.replace('refs/heads/', '');
+      }
+    }
+
+    if (wtPath && branch.startsWith(TAKT_BRANCH_PREFIX)) {
+      entries.push({ path: wtPath, branch, commit });
+    }
+  }
+
+  return entries;
+}
+
+/**
+ * List all takt-managed worktrees.
+ */
+export function listTaktWorktrees(projectDir: string): WorktreeInfo[] {
+  try {
+    const output = execFileSync(
+      'git', ['worktree', 'list', '--porcelain'],
+      { cwd: projectDir, encoding: 'utf-8', stdio: 'pipe' },
+    );
+    return parseTaktWorktrees(output);
+  } catch (err) {
+    log.error('Failed to list worktrees', { error: String(err) });
+    return [];
+  }
+}
+
+/**
+ * Get the number of files changed between the default branch and a given branch.
+ */
+export function getFilesChanged(cwd: string, defaultBranch: string, branch: string): number {
+  try {
+    const output = execFileSync(
+      'git', ['diff', '--numstat', `${defaultBranch}...${branch}`],
+      { cwd, encoding: 'utf-8', stdio: 'pipe' },
+    );
+    return output.trim().split('\n').filter(l => l.length > 0).length;
+  } catch {
+    return 0;
+  }
+}
+
+/**
+ * Extract a human-readable task slug from a takt branch name.
+ * e.g. "takt/20260128T032800-fix-auth" → "fix-auth"
+ */
+export function extractTaskSlug(branch: string): string {
+  const name = branch.replace(TAKT_BRANCH_PREFIX, '');
+  // Remove timestamp prefix (format: YYYYMMDDTHHmmss- or similar)
+  const withoutTimestamp = name.replace(/^\d{8,}T?\d{0,6}-?/, '');
+  return withoutTimestamp || name;
+}
+
+/**
+ * Build review items from worktree list, enriching with diff stats.
+ */
+export function buildReviewItems(
+  projectDir: string,
+  worktrees: WorktreeInfo[],
+  defaultBranch: string,
+): WorktreeReviewItem[] {
+  return worktrees.map(wt => ({
+    info: wt,
+    filesChanged: getFilesChanged(projectDir, defaultBranch, wt.branch),
+    taskSlug: extractTaskSlug(wt.branch),
+  }));
+}